Average Co-Inventor Count = 4.44
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Nippon Oil Company (1 from 690 patents)
2. Research Association for Petroleum Alternative Development (1 from 1 patent)
2 patents:
1. 5286693 - Method of producing catalyst for converting hydrocarbons
2. 4670614 - Hydrocarbon conversion process